These are blocks on game modes that spawn items. Typically, it takes about 10 seconds for an item to be generated. Any item can be generated, and it is completely random.
The slabs are found all over the map, however, they're known to be found in closed walls, or areas you may walk into.
Pedestals occur in all game modes except 1v1 arena and 2v2 browars.
Pedestals are the only source for Grenades
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